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10

Notes on Microphone System Operation

In a system using twelve or fewer microphones, maintain
a distance of at least 30 cm (1 ft) between each pair of
microphones, and a distance of at least 3 m (10 ft)
between each microphone and its receiving antenna.

For details of operation with two or more channels, refer
to the Operating Instructions for the WRR-810A UHF
Synthesized Tuner and the WRR-840A/860A UHF
Synthesized Diversity Tuner.

Ensure that the tuners set to channels not being used are
either turned off or set to the minimum output level (the
LEVEL adjustment knob set to MIN).

When powering the microphone on or off, to keep the
noise to a minimum, set the audio output level from the
tuner or mixer to a minimum.

Powering the microphone on without checking the
channel selection first may interfere with the operation of
other microphones/transmitters, if the current setting is
already being used.

Changing the Input Attenuation

Select an attenuation of 0, 6 or 12 dB according to the input
sound level.

Attenuator switch

0

-6

-12

Error Codes

In addition to the normal channel indication, the following
error codes may appear in the LCD window.

Error codes

Error code

Err 1

Err 2

Err 3

Meaning

An error occurred in
the data in backup
memory.

A fault occurred in
the PLL synthesizer
circuit.

Battery voltage
exceeds the
specified limit.

Required action

The data is
reinitialized. Reinsert
the battery, and set
the channel again.

Consult your Sony
dealer.

Use the correct
battery.

Operation

Summary of Contents for WRT-867A

Page 1: ...F Synthesized Wireless Microphone 1995 by Sony Corporation 3 798 105 12 1 Model WRT 867A Operating Instructions Before using the unit please read this manual thoroughly and retain it for future reference ...

Page 2: ...ts Identification 5 Operation 6 Inserting the Battery 6 Changing the Channel Selection 7 Channels and Carrier Frequencies 9 Notes on Microphone System Operation 10 Changing the Input Attenuation 10 Error Codes 10 Specifications 11 Table of Contents ...

Page 3: ...ternal parts or attempt to repair it Notes on Use Introduction The WRT 867A is a wireless microphone for an 800 MHz band UHF synthesized wireless microphone system to be used for broadcast or movie production purpose The other system components include the WRT 810A UHF Synthesized Wireless Microphone the WRT 820A UHF Synthesized Transmitter the AN 820A UHF Antenna the WD 820A UHF Antenna Divider t...

Page 4: ... operates for approximately four hours at normal operating temperatures on one alkaline battery LR6 New dynamic unit and rigid body The newly developed dynamic unit and rigid body produce a rich and balanced sound with no rumble Particularly suited to stage vocals where it provides clear and easy on the ear sound Features Built in attenuator The attenuator can be set to 0 6 or 12 dB by a switch op...

Page 5: ...5 Parts Identification Antenna Cage Grip Model number indication Antenna Power indicator View from underside LCD window Channel setting buttons Attenuator switch Serial number label Battery compartment ...

Page 6: ...lights in red and the LCD window shows the currently selected channel number To change the channel selection see the section Changing the Channel Selection on the next page 3 Replace the grip Note Check that the battery is correctly in place before replacing the grip If you try to force the grip back on while the battery is not properly in the battery compartment it is possible for the outer casin...

Page 7: ...be leakage from the battery wipe the battery compartment clean before inserting a new battery If the leakage is serious consult your Sony dealer Changing the Channel Selection When you insert a battery in the microphone the currently selected transmission channel number appears in the LCD window To change the channel selection the microphone must be in the channel setting mode in which the LCD ind...

Page 8: ... Those channels on which the RF indicator of the tuner does not light are usable If there is a TV broadcasting station nearby to avoid possible interference with broadcasting do not use that station s channel 66 02 66 50 66 51 67 01 67 02 67 50 button button 66 01 67 51 2 Release the button and wait for about 3 seconds The indication stops flashing and the microphone starts transmitting on the new...

Page 9: ...48 798 125 66 49 798 250 66 50 798 375 66 51 798 500 Frequency MHz TV 66 Band Channel Frequency MHz TV 66 Band Channel Frequency MHz TV 66 Band Channel Frequency MHz TV 66 Band Channel 67 01 799 250 67 02 799 375 67 03 799 500 67 04 799 625 67 05 799 750 67 06 799 875 67 07 800 000 67 08 800 125 67 09 800 250 67 10 800 375 67 11 800 500 67 12 800 625 67 13 800 750 67 14 800 875 67 15 801 000 67 16...

Page 10: ...o a minimum set the audio output level from the tuner or mixer to a minimum Powering the microphone on without checking the channel selection first may interfere with the operation of other microphones transmitters if the current setting is already being used Changing the Input Attenuation Select an attenuation of 0 6 or 12 dB according to the input sound level Attenuator switch 0 6 12 Error Codes...

Page 11: ...rier frequencies 792 250 to 805 500 MHz 102 settings at 125 kHz intervals Tone signal 32 768 kHz Type of emission 110KF3E RF power output 10 mW 50 ohms Frequency stability Within 0 005 Spurious radiation Less than 2 5 µW Antenna type 1 4 wavelength helical Pre emphasis 50 µs Reference deviation 5 kHz Frequency response 50 Hz to 15 kHz Signal to noise ratio More than 60 dB A weighted with reference...

Page 12: ......

Page 13: ...Sony Corporation Printed in Japan ...

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